AN APPROACH TO THE CONODONTS FROM XIAOSHIGAI SECTION AT THE BOUNDARY BETWEEN THE CAMBRIAN—ORDOVICIAN SYSTEMS, XIAOSHAN, ZHEJIANG PROVINCE
-
摘要: 本文根据在浙江省萧山县小石盖剖面中所发现的寒武──奥陶系界线地层的牙形刺化石,建立4个牙形刺化石带。该界线地层位于第2与第3牙形刺带之间,把原浙江石油地质大队划分的界线上提了30.7m.这些化石带均可与国内外相当层位的牙形刺带对比,与国际寒武──奥陶系界线工作组投票决定的界线一致。文中还对牙形刺色标与油气关系进行探讨。Abstract: Conodonts discovered from Xiaoshigai section at the boundary between the Cambrian-Ordovician systems of Xiaoshan Region,Zhejiang Province are used to establish 4 con-odont fossil zones.The boundary bed is located between No.2 and No.3 zones,suggesting it is 30.7m upward than that of previously defined.It is considered that those fossil zones are comparable to the conodont zones of the corresponding beds at home,as well as consis-tent with the boundary decided by the International Work Group for the Cambrian-Or-dovician Boundary.Moreover,the color indexes of conodonts and their relationship with oil and gas are also discussed in the paper.
-
[1] 安泰摩,张放等.华北及邻区牙形石.北京:科学出版社,1983 [2] 安泰摩,丁连生.宁镇山脉地区奥陶系牙形石的初步研究及对比.石油学报,1982.3(4) [3] 安泰摩,杜国清,高琴工.湖北奥陶系牙形石研究.北京:地质出版社,1985 [4] 安泰岸.中国南部早古生代牙形石.北京:北京大学出版,1987 [5] 倪世钊,汪啸风等.湖北宜昌黄花场寒武系与奥陶系的界线.中国地质科学院宜昌地质矿产研究所所刊,第6号,北京:地质出版社,1983 [6] 丁连生,安泰库.杭州余杭荆山岭奥陶系牙形石及地层意义.地质研究论文集,北京:北京大学出版社,1985 [7] 丁连生.江苏昆山地区奥陶纪牙形石生物地层探讨.石油地层古生物会议论文集,北京:地质出版社,1987 [8] 丁连生,包德宪,曹海虹.浙江大豆山及安微琅部山寒武一奥陶系界线牙形石新知.山西矿业学院学报,1988,6(1) [9] 丁连生,包鸽宪,曹海虹.浙江诸盛地区寒武一奥陶系牙形石研究.地质论评,1988.34(4) [10] Barnes CR at e1.Lower Paleozoic Conodont Provincilism.The Geological Society of America.Special Paper,1973,(141):157-160 [11] Muller KJ.Late Cambrian and Early Ordovician Conodonts From Northern Iran.Geological Survey of Iran Report,1973,(3),1-76 [12] Druce EC at e1.Cambrian-Ordovician Conodonts from the Burke River Structural BeIt,Queensland,Australia Bureau of Mineral Resouces.Bulletin,1971,(110):1-120 [13] Fahraeus LE et al.Fraconian(late Cambrian)to early Champlainian(middle Ordovician)Conodonts from the Cow Head Group,R'estern Newfoundland.Journal of Paleontology,1978.53:144-171 [14] Muller KT.Uooer Cambrian Conodonts from Sweden.Fossil and Strata Num,1991,(8) -
计量
- 文章访问数: 649
- HTML全文浏览量: 72
- PDF下载量: 248
- 被引次数: 0
下载:
苏公网安备32021102000780号